121335313200 has 120 divisors (see below), whose sum is σ = 405576565248. Its totient is φ = 30949290240.

The previous prime is 121335313163. The next prime is 121335313207. The reversal of 121335313200 is 2313533121.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (121335313207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2170504 + ... + 2225703.

Almost surely, 2^121335313200 is an apocalyptic number.

121335313200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121335313200 is an abundant number, since it is smaller than the sum of its proper divisors (284241252048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121335313200 is a wasteful number, since it uses less digits than its factorization.

121335313200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396251 (or 4396240 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 121335313200 its reverse (2313533121), we get a palindrome (123648846321).

The spelling of 121335313200 in words is "one hundred twenty-one billion, three hundred thirty-five million, three hundred thirteen thousand, two hundred".